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Finding the Fourth Proportional to 36,611.66, 54,916.46 and 11,653.20

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Solution

The fourth proportional to 36,611.66, 54,916.46 and 11,653.20 is: 17,479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,611.66 : 54,916.46 = 11,653.20 : x
  2. Step 2: Convert to fraction form
    36,611.66/54,916.46 = 11,653.20/x
  3. Step 3: Cross multiply
    36,611.66x = 54,916.46 × 11,653.20
  4. Step 4: Simplify right side
    36,611.66x = 639,952,433.41
  5. Step 5: Solve for x
    x = 639,952,433.41/36,611.66
  6. Step 6: Final answer
    x = 17,479.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.